Loading and feeding apparatus for coils of strip metal



July 16, 1946. J W 2,404,155 A LOADING AND' FEEDING APPARATUS FOR coILs 0F- STRIP METAL Original Filed June 8,.1944 3' SI'ieets Sheet 1 I I I aE/Wovd @emm lM (77-71mm NEY July '16, 1946. F. wood 2,404,155

7 LOADING AND FEEDING APPARATUS FOR COILS OF STRIP METAL 7 Original Filed June 8, 1944 SSheets-Sheet 2 .ZVI/ENT R M RM # TTOR NEY 5x133," 3%, 19430 WOQD 2,404,155-

LOADING AND FEEDING APPARATUS FOR COILS 0F STRIP METAL Original Filed June 8, 1944 5 Sheets-Sheet s sriED CONTROL VA LVE J04 J40 J39 J37 CONTR L CONTROL VA LVE CON TRDL VA LVE JJTENTOR T Wow g efm M A T TO R Y Patented July 16, 1946 I LOADING AND FEEDING APPARATUS FOR COILS OF STRIP METAL ,Frank J. Wood, Riverside, IlL, asslgnor to Goodnian Manufacturing Company, Chicago, 111., a corporation of Illinois Original application June 8, 1944, Serial No.

539,368. Divided and this application December 11, 1944, Serial No. 567,760

2 Claims. 1

This invention relates to improvements in loading, and feeding apparatus for coils of strip metal. Heretofore coils of strip metal have been loaded onto rotatable expansible coil supporting blocks or mandrels by power, by mounting'the coil on a movable carriage and elevating the coil so its open center can be moved onto the mandrel. The mandrel is then expanded after the coil has been fully mounted thereon. ,As the coil is loaded onto the mandrel, its tail end, which pr jects outwardly from the coil, is moved sideways with the coil between a pair of pinch rolls. These pinch rolls are adapted to grip said tail end of the coil and feed it to a cropping shear, or a processing apparatus such as a roll stand, slitter, brushing feeding means of my invention.

unit, pickling and cleaning unit, or any other type of processing apparatus The pinch rolls frequently grip the metal and. unwind the coil before it is fully expanded. This causes the coil to spring and unwindto such an extent that the mandrel cannot be sufiiciently expanded to fully grip the inside of the coil, resulting in further springing and unwinding of the coil and making it, necessary to remove and rewindthe coil before process- Among the objects. of my invention are to provide a novel and improved'form of loading and feeding means for coiled strip metal wherein the coil is loaded onto an expansible mandrel by power, and in so interlocking the pinch rolls with the mandrel that the pinch rolls cannotv be engaged with the leading. end of the metal until the mandrel is fully expanded.

This application is a division of application Serial No. 539,368, filed byme on June 8, 1944.-

Other objects of my invention will appear from time to time as the following specification proceeds and with reference to the accompanying drawings wherein:

Figure, 1 is a top plan view of a coil feeding and loading device constructedin accordance with my invention; a l.

Figure 2 is a view in side elevation of ,the device shown in Figure 1; V

Figure 3 is a fragmentary substantially longitudinal sectional view showing, certain details of the coil loading device and the pinch roll stand for feeding the coilfor. processing;

In the drawings, an expansible mandrel I0 is shown as being rotatably mounted on a base frame I2 at the entering end of a pair of pinch rolls I I, I I. Said mandrelserves to support a coil of strip metal I5 for unwinding, and said pinch rollsserve ,to grip and unwind the strip metal and feed it to a suitable processing device such as a flying shear. I3, which is adapted to crop the ends there of, before the metal passes to a pickling and cleaning device or other processingv apparatus (not shown).

part of my present invention so will not herein be shown Or described in detail.

The base frame I2 is mounted on a suitable foundation and includes a pair of parallel spaced connected I-beams I6, I6 extending parallel to the axis of the mandrel I0. Said mandrel is suita-bly mounted on said base frame in a mandrel housing I! and extends along said frame between said I-beams. Said mandrel housing is mounted on the top sides of said I-beams and projects upwardly therefrom, and said mandrel is journaled in said mandrel housing in overhanging relation with respect thereto, so the open center of the coil of strip metal I5, carried on a coil supporting carriage I8, may be placed on its free end.

The expanding mandrel Ill may be of any well known form and is not herein shown or described in detail, sinceits detailed construction forms no part of my present invention. Figure 6 of the drawings diagrammatically shows this mandrel asincluding a plurality of segments '22, 22 expanded by wedges 23 and 24, which are actuated by a fluid cylinder 25 and piston 26through a piston rod 21. The admission of fluid under pres:

an inclined guideplate 95. Said inclined guide.

plate is mounted on the pinch roll stand and extends in a horizontal direction away from the entering end of said pinch roll stand to a position in alignment With the carriage I8, when said carriageis in position to receive a coil. During moyement of the carriage I8 towards the mandrel Said flying shear is shown in the drawings for illustrative purposes only-and is no connection,

" parallel shaft H3.

' on saidjpinch roll'f'stand, andwm be guidedjby said guide plates betweenthe pinch rolls *I I, I-I.

The lower pinch roll II is mounted adjacent its opposite ends in suitable bearing supports 99;?

99, projecting upwardly from a'bottomzplate Illll of a frame I ill of the pinch roll stand. sai'd:

frame is of a substantially C-shaped' formation opening towards the guide plates BS and'BK -to permit "the insertion of the taih'e'nd o'f the-coil between said pinch rolls as the coil isloaded onto the mandrel I 6. The upper portion-of said-frame IflI is provided with a pairofzlaterally spaced-Ever tically extending channelled guides H32, I02, with-l in which is guided a frame I03 having the upper pinch roll II suitably ijournaled therein, ad'j'a- I cent its opposite ends. -A piston rod I04 extensible from acylin'de'r 165 ie-secured to the-frame 153 for moving said frame vertically, to engage the upper pinch roll II with the upperJsur-face -iof-the metalandtopay'the metal on of the mandrel' I fi upon rotationof said pinch rolls.

The pinch :rolls I'I I I bare -both driven-from a -m'otor; I-ilfi' mounted 'omaks'upp'ortbracket I91, herein shown as being yieldably connected to the frame WI and projecting late'r ally therefrom. said motor has-{drive connectiorf'with alt/arm I 69 'throughasuitable' dr ive connection which is'.he1'e in shown as being afV-belt :drive indicatedl'generally by' reference"character "I i The worth I 39 meshes 'with aIwormgear'II I on a shaft I I2 sub stantially -coa'xial with the -lowerl roll II.. Said shaft I I'E has connection with the lower :pinchroll II by means of-a-flexibl'enrive connection indi-t cated by .1 reference "character M, herein shown as :being a' we'll knownform ef roller milldrive meshes with "and drives aspurgear -I I6 on a n'eote'd with the upper xpinch'jroll 'II by means of a suitable roller :mill driveu'conn'e'ction I IT.

:A spur gear H .011 fthe shaft II2J' Referring now in particular to th'e fluid diagram shomi i'n Figure :6 and the interlocking connection between the mandrel II] and thecylinder 3 1 05' for engaging the pinch rolls with 'th'e strip metaLia :con'trol Valve 'IIfi-is provided tocon'trol the admission and release of-fluid underiipres- I sure to the cylinder-2 5, for expanding and re-' tractin'g the mandrel :m; "Said control valve is goonnected with a fluid pump I 25 byfmeans of a l pressure line 42!.

A return line I22 leads from said control valve to a fluid storage -ta'nk :Ia23. V A pressure line I24 leads from said control-valve to' 'th'e pis'ton rod-end of the cylinder 25, to supply fluid under pressure to said endjo f s'aid "cylinder with the tank I23, A pressure line I36 connects v 'fsaifd; controlvalve withl th'e head "end ofthe cyl- -inder I05, '-to supply fluid under pressure thereto and to move the'upper pinch roll in a direction to engage the upper surface of the strip metal and --120 ;hQ1d -s2,id!pin(lh roll in engagement therewith;

jpressureline I'3I- connects the control valve "I34 with a speed control valve I 39. A pressure lineldil'r 'connectsf saidspeed control valve with e pisto'mrode d'of the cylinder I05, for supply i gfluidmnder'pressure thereto and movingthe i upperpinch roll ;IIin a direction to release pres ll'sure from the upper surface of the metal. Said 7. zspeedicontrolvalve like the speed control valve I28 may be a reduced return valve, and is pro- 7 videdto reduce and control the speed of engagement of the upperipinch roll with the strip metal upon the=applica tion of fluid under "pressure to the 'heaic'l end of the cylinder (195. The by-p'ass valve I 31 "is-provided to hold pressure in the line I 31] until 1 a predetermined pressure-is reached "therein; at which-time 'the' nia'ndrel it will be in a f-ullyexpanded condi'ti'om' d' w illfbeheld in engagcmentf with the-inside e thecoil, I5. Sa-id-bypass valve may be of any well l'm'ownform arrafig'ed-to pr'even t the flow of fiuid' under pres'sure 't'o and-through the pipe 133 until a predeterriiined pressure is reached in the valve and, as herein shown-includes a plunger Ifl seated in a passageway 4'43; When a' predetermined' presslili e' is lached ma passageway M of-said Valve, s'aid "piling-er will b'elifted on its "seat and fluid y will flow 'tlirou'gh thepas's'ageway "I 43 'into'cham- "all mandrel Ili has been fully expanded. Said shaftis flexibly conand moveth'e iwedges "23 and 24 in a directbn' 3 to perrriit sai'd mandreltofretract. Arelie'f alve I-2 5-is provided in-said pressure: line to relieve excessive pressures from said pressure line and said cylinder 25. A pressure line 421. leads from the 1 control valve I-I9'toa speed :control .valvel'2'8, A pressure lme 129 leads from 'said 'speedcontrol valve to. the head end of-the cylinder for sup plying 'fiuid 'under 'pressure thereto, to move the wedges 23 and 24 in adirection to' exp'andthe mandrel It. The speedcontr'ol valve I'28'*may,

be areduced "return valveo'f "a well known form,

While I have hereih shown and described one form in which my invention may be embodied, it will be understood that th'e'construction'thereof and the arrangement of the various parts maybe altered ivi'thbut departing from "the spirit and scope ta-hereof. Furthermore, 'I do .not wish :to be construed a's {limiting my 'invention to the specifi'c embo'diment illustrated, excepting as it may be limited in the appended claims. "I claim as my invention: I r

-1. In a device for feeding strip metalahd in combination with a rotatable expanding mandrel, means {for expanding said mandrel into "engagement with the inside of 'acciil of strip metal,

two' po'wer {driven pinch rolls for engaging the leading end of thecoir of. strip metal and feeding the s'trip metal for processing; :me'ans for moving saidxpinch lrollssinto :en'ga'gementfiwith to restrict the passage-of fluid from the head end of said cylinder-to the "return, 'toretard the I speed-of travel of the piston llfi when mpving m a 1, direction to permit said mandrel 3 to; contract;

" iApressure line I cormectsthe pTe5Sl11 e,1inj

thee-strip metal, said meansmeing interconnected With Saidmeans ifer' -expanding'said mandrel; to prevent said-pinch rolls from being engaged with the strip metal until said mandrel is :in a fully expanded condition. i

:2. an a device for feeding as metal "and in combination with a rotatable expanding coilzsupde'scribed -m my parent application Serial 7 porting mandrel, fluid means for expanding said mandrel into engagement with the inside of a coil of strip metal, two power driven pinch rolls for engaging opposite sides of the leading end of the coil of strip metal and feeding the strip metal for processing, fluid means for moving said pinch rolls into engagement with the-strip metal and holding them in engagement therewith, and anv interlocking connection between said means for expanding said mandrel and said means for engaging said pinch rolls with the strip metal, arranged to prevent said pinch rolls from engaging the strip metal until said mandrel is in a fully expanded condition.

FRANK J. WOOD. 

